It was expected that the Google update that was released past Friday can be discussed in detail on this Friday but that was not feasible. The SEOs decided to wait and see how the things turned out over the course of the weekend. There are definite signs from the tracking tools and discussions of SEO communities about a November 30 update.
It seems like an algorithm update was launched on 30th November, Friday. There are discussions in the SEO forums and social media about this update. The tracking tools also went wild around the date.